This BASIC-based system never received an official name, but it was used by both Trevor Toms himself and by his employer, Phipps Associates.
The system was originally published in the The ZX81 Pocket Book.
According to this interview with Sean Ellis, the Trevor Toms system was the primary inspiration for GAC.
| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Cauchemard House | ? | ? | French | Solution |
| City of Alzan, The | Phipps Associates |
1981 | English | Solution, Map |
| Greedy Gulch | Phipps Associates |
1982 | English | Solution, Map |
| Magic Mountain | Phipps Associates |
1982 | English | Solution, Map |
| Maison du professeur Folibus, La | Micro-Systèmes | 1982 | French | |
| Pharaoh's Tomb, The | Phipps Associates |
1982 | English | Solution, Map |
| Knight's Quest, The | Phipps Associates |
1983 | English | Solution, Map, Hints, Clue sheet |
| Stadt Alzan, Die | Hueber Software | 1983 | German | Solution, Map |
| Tablets of Hippocrates | Fawkes Computing | 1983 | English | Solution, Map |
| Colditz | Phipps Associates |
1984 | English | Solution, Map, Hints |
| Montagne Magique, La | Les Aventures | 1984 | French | |
| Quete du Chevalier, La | Les Aventures | 1984 | French | |
| Tombe du Pharaon, La | Les Aventures | 1984 | French | |
| Ville Fantome, La | Les Aventures | 1984 | French |